Automatic weighing-scale



(No Model.)

2 Queen-sheet v1. "A. SCHULZ.. 'v AUTOMATICWEIGHING SCALE.

Patented'Jly 9;. 11895.

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ANDREW sCnULznor LOTT, TEXAS, AssleNoR To THE KINGSLND"&

DOUGLAS MANUFACTURING COMPANY, OF ST. LOUIS, MISSOURI.

AufroM Arie Ytivi-:1o. H t n e sic/tta.

srscxmcanonprorpying pmfof @arent no, 5:42,@ 4. .my e, Iuses.

To all whom, it may. concern: Be it known that I, ANDREW SCHULZE, acitizen ofthe United -State s,` resir 1ingvat Lott,

county of Falls, and-Stateof Texas,g have `in` A vented a Vcertain newand,tiseful Automatic Weighing-Scale for Cotton, of whichthejfollowingis Suchel fnll,-clear, and' e'z `tac t description as will venable anyoneuskllled Ain the artA to which it: appertains to n1ake` anduusethe.

same,'reference being had'tofthe vacct)mpany-Al ing drawings, formingpart of this specifica#` tion.

My invention rclatcsto a scale or weighingmachine which isparticularlyadapted tobe connected to a pneumatic conveyer at any pointfor weighing cotton, grain, or any o thcr product. It is onethat isautomatic in'operaf tion,- weighing any amount to which its scale may beset, and t'hen cuttingA ol the supply and emptying itself` when it maybe reset, preferably by hand, to repeat the weighing operation.-.

'lhe invention' consists in features and combinations pointed out in theclaims at the end of this specification.

In the drawings, whcrea machine is shown whose details I have found mostpractical up to this time, Figure 1 is a vertical sectional view takenthrough the outer'casijng of the scale ou the line 1 l of Fig. 2, theweighingbox being in elevation. Fig. 2 is a cross-sec- A tional view onthe line 2 2 of Fig. 1, the weigh.-

` sents a pneumatic tube o'r`pipe,rthrough which ing-box being inelevation. Fig. 3 is au end view of the scale,.tho scale-beambeing' cutolf or in section.

In all the drawings, where similar' indicating-marks refer to the sameparts, 5 repredoor or valve 10,having an arm 11 connected to it,fwith nuadjustable weight 12on its end,.-

'thel'o' erato'nofwhih willfbel'hereipafter de- '13 is theweighing-receptacle, which is of nearly; the size asg-the --shellliorcasing' G and has ian openfg'tlop;'iinxnediatelybbeneathz the '1 opening9 'nfthe'pneumaticgpipe- 5, and14 is receptacle. 1,-1

15am; rollers pivotedin brackets secured tothe inner 'sides 'ofthecasing and bearingv on" the sid's off the receptacle 13,th'erebyf hold!ing s n'ch receptaclek centrally inv the casing 6 and preventing it fromtipping.-l 16 'are brackets secured tothe si'des weighing-receptacle,and 17,'are stops on the casing 6, which limitthe downward movementofls'ucl'receptacle.' L

1S are knife-edges formed on brackets secured o'f'e on each side of'therweighingLreceptacle 13, the knife-edges resting on the arlnsoronthe bifurcatedgends 13 of the scalebeam 20,-'these being'supportedfrom knifeedges formed onbrackets secn'red ,to :the insidcofthe'onter'casin'g. A I 22 are the scale-weights which are carried onthe end of the beam 20, and 23 is the sliding or balancing-weight.

'lhescale-bealn extends through a -slot`21t ,in the end of the'ontervcasing 6 and Vj ust outside of such casing hasattached soit thetrip 25, which engages with the under side of the pivotcd Atrigger 2G.27 is a weighted lever pivoted to the casing 6, and-'its loweror bentend normally'restson such trigger.

2S is a pivote'd trp'which normally engages with a' tooth or projection29 -on .the side of the vertical barl or rod 30, which works in brackets31 on the end of the casing 6. The upper end of bar 30 is pivoted to alink 32, in tnrn pivoted to the arm 11, which is connected to andoperates thevalve 10 of the pneumatic pipe 5,

33 is a handle o n the lower ond of the rod or bar 30 for opening thevalve 10 after it has been closed through its weighted arm 12.

Ou the outside of the rod 30, just above its IOO near the lower endtooth or projection 29, is a. pivotedl dos,r or pawl 34 for resettingthe weighted lever 27 after the valve has been closed and when itis tobe opened again, the pawl slippingy over the weighted lever as the rod30 goes d( wn, but engaging with and lifting such lever as the rod 30goes up.

V35 is a projection on the valve'lO at one end thereof and moves acrossthe opening 9 and Y la'r 4l n the rod, a collant-42 being also'securedto the rod under.thebra'ckvet4 38 for limiting the upward movementrofsuehn'pd. A

43 are trip-'arms which are' pivoted' to and f the weighingreceptacle,the arms crossing each other and lying in such'position as te inak'econtact with the beveled edges of'the' head 39 on the-end of the rod 37.The lower ends ofthe trip-arms ,43 have hooks or latches 44 on theirlower sys ends,whicl1 are adapted to`engage with prjeetio'ns 45 ou thehinged doors'lt in thebotloin of the weighing-receptacle, and therebyhold such doors closed, the hooks haviugf-bev-Y eled or rounded ends, sothat as the doors are closed their 'projections will'-readil v engagewith the hooks 44 of the tripfarms 43. 'lh-e several parts of myautomatic scale bei ing in the position shown in the-drawings,

upon cotton or .other product being drawn through the 'pneumatic tube 5-by a suction fan,- we will suppose a partial vacuum will be created inthe outer casing (i of the scale.'

This will not afectl in any way'the weighingreceptacle 13, as theair-pressure all around it is the'same. A v v \\'e will suppose that`cotton is weighed.` Itis drawn through the til it; reacties the opening9 in such pipe, lwherel it will drop through the same and into'theweighing-receptacle 13. A vSuppose the scale be set at theone-hundred-po'und mark'. lVhen that amount ot cotton has dropped intothe weighing-receptacle, the scale-beam will tip; and, the outer end ofsuch beam raising, its tlrip .25 will move the trigger 26 upward,roleasing it from engagement with the weighted arm, 27, allowingr sn'eharm to' drop. VAs it falls it will strike the lower end of the trip 2S,releasing such trip from engagementwith the rod 30, and allow such rodto drop or move downward in its brackets.' This rod being connected tothe valve-arm 11 by the link 32, the valve-arm will also'fall andl thusclose the valve 10, cutting off an'y further supply of cotton to theweighing-rceptacle. As the valve 10 closes, its projection 35 strikesthe rounded head et' the rod 37 on the end of the weighing1'eeeptacle,moving such rod downward being pipe 5'. un

and causing its pointed and tapered 4head 39 to spread apart thetrip-arms 43", thereby disengaging their hooks fromthe projectionsou theswinging doors 46, allowing them to be opened bythe weight of thecotton. As they open theycause the doors of the outer easing to alsoswing open and allow the cotton to fall from the weighing-receptacleinto a bin, gin,

or other desired'poin't. By then lifting `the 46 in,tl |e bottom 'oftheweighiugbox, and the.

same operation in' weighing canbe'irepeated.

This machine is adapted fdreortin-uous or occasional weighing, but is'more suitable for -the latter use, such fas tolling-:cottonthat is to beginnedlwhere,'forinstanfcethc pneu. maticpipe-'conveyor would-'lead from.point where the `cotton.;wasfunloaded.. tothe ginA and the scaleconnected -tiothe pneumatic pipe at any desired intermediate point. Mhena certain amount-"ofcotton'was to'beginned, the scale wo ul`d ,be,sett`othe point represent ing` the', amount. I passing lthough'l th'epipewould fall in the wighingrece-ptacle,'which when full would olltoll',and the `first cottonsupply and eruptfylitselftj- After the amount.

of eott'onrepresentiug the to'll has been taken y out ofthe cottonl to-be ginned the valve to the scale would'beclosedand :the remainderv ofthe cotton passing through the conveyer would be carried to the ginf.AUien another lot was toV be ginned, the scalewould be set to the pointrepresenting the amount of toll, and by opening the valve l0 through therod 3U the operation just described cou-1d be repeated. The slot in the.outercasing may be covered with rubber Secured at the sides, itdcsired, to prevent all leakage, the two parts overlapping in thelmiddle and the scale-beam workng between. .The slotA would thusl bealways closed; but the leakage is so small that this is not essential.

lVhile the scale herein shown is adapted more especiallyforsuction-conveyors, it can be used equallyas well in connection withllO- a blower-conveyeryfor by increasingr the weights on the arms of thehinged doors just sufficient to overcome the air-pressure' in the casingabove-theywould remain shut while the weighing receptacle was illing andwould readily-cpenwlienthe weight of the cot-ton fell upon them.. i. 1

Other changes and moditicatione can 'bemade in vmy weighing apparatuswithout changing its operation or departing from the spirit of myinvention.

Having thus fully described my'invcntion,

0 supply of cotton', connections for opening the what I .clam as new,anddesire to secu-re by Letters Patent, is.- A g1 "1 '1`LIn combinationlwitha pneumaticconveyer-,f a Aelosel casing connected thereto, a

weighing apparatus therein whose receptacle is in eommun'ication withsaid pneumatic conveyer'aud 'receives -cotton or other producttherefrom,- doors at the bottom oi said weighingreceptacle,automaticmeans opening said doors, and doors atthe bottomofthe casing adapted' to be opened'by the weight of the dischargedproduct. 2.` In"combinati ou with a pneumatic con` veyer, a] closedcasing connected theretoga r 5 weighing apparatus therein whosereceptacle "is'adapted torecevecottou or otherproduct l'from .theeonveyerya valve for cutting ot the weighingreceptaclewhen the scale ofthe vi fweighingnapparatus is tipped, -ahd door s in A theoasing adaptedto beopened bytheweight of the discharged p'i'oduct.' f -3.-In.combinatonwith 4a. pneumatic con- Y veyer, a closed `casing connectedthereto, a weghin g apparatus. therein whose receptacle,

Y is adapted to receive cotton or other product r ffrom the conveyer,connections for opening' the weighing receptacle when the scale of theweighing apparatus istipped, and 'doors in e casing adapted to be openedby the weight ott-1 the discharged produca y aclosed casing connectedthereto hav` doors normally held A closed, a.. weighing 35' appjfi'ratus in such casing whesarecebtacle is "la'dapted .to receive cotton 'o nother product ',fro'rn-the conveyeri'avalve fo'lxigcnttin'g ol the,depuis-,the mung adapten In'l combination wth"a"pneunatic conf product,and valve connections for turning on 5. Ill-'combination witha-pneumatic con-` veyer, a closed casing connected there-to, a. weighingapparatus therein whose receptacle is'adapted to receive cotton orotherproduct from the conveyena valve between such'conveyer andreceptacle, doors in such-receptacle, actuating connections between suchdoors and said valve, valve-operating devices be Vtween the scale of theweighing apparatus and the said valve, whereby when the scale of theweighing apparatus is tipped such doors will be opened and such valve beclosed, and doors in the bottom of said casing adapted to -be opened bythe discharged product.

- 6. In combination with a pneumatic conveyer, a closed easing connectedxthereto, `a weighing apparatus therein whose receptacle is adapted toreceive cotton'orf other product from the conveyor, a suitable valvebetween* said conveyer and receptacle, doors in-such' receptacle' andcasing, actuating connections between thedoor's of such receptacle andthe conveyer valve for opening such doors as the valve is closed, thedoors of the casing being opened by the weight of the'dischargedproduct, and resetting means operated at will for again-putting theweighing apparatus into operation and opening the conveyer valve.

In testimony, whereofl I have hereunto set my hand and 'ixedmy seal,this 3d day of October, 1894, in the presence of the two subscribingwitnesses. l

ANDREW SCHULZE. [L. s.] Witnesses:

JOHN F. GaEnN, VERNELL.`

